Log Message:
py-dns: updated to 2.4.2

2.4.2

Async queries could wait forever instead of respecting the timeout if the \ 
timeout was 0 and a packet was lost. The timeout is now respected.
Restore HTTP/2 support which was accidentally broken during the https \ 
refactoring done as part of 2.4.0.
When an inception time and lifetime are specified, the signer now sets the \ 
expiration to the inception time plus lifetime, instead of the current time plus \ 
the lifetime.